I could see some wisdom in SAP’s advice, but I couldn’t imagine that it was the only solution to getting her reports to run correctly. After asking her a few more questions I realized that the reports were still XI reports. I asked her if she had tried opening and saving the reports within the CR 2008 designer before publishing them to CR Server 2008. I figured it was a long shot since the SAP technician didn’t suggest it, but it was a simple thing to try. Well sure enough that solved the problem. Apparently the file format makes a difference, at least for dynamic parameters.